Officers would like to speak to June Weatherman, 54, in connection with the incident.

PC Lewis Busby said: “I would urge anyone with information about this crime to contact us or who thinks they know the woman in the CCTV.

Cambridgeshire police need your help to trace June Weatherman

“My thoughts go with the family who are dealing with the loss of their loved one and now have to deal with this alongside it.”

Mary was bedridden and suffering from dementia when her purse was stolen.

Her bank card was then used to pay for groceries and clothes, as well as withdrawing cash.

The card was only reported as stolen on Friday, October 12, four days after Mary passed away.

Jim Banks, Mary’s son, said: “My mother was 91 years old, suffering from dementia, was immobile and had severe breathing problems when her purse was stolen as she lay in bed at Peterborough City Hospital.

“She would have been completely unaware of where she was let alone that she was being robbed by a despicable and immoral individual who has preyed on the sick and vulnerable.

“She died within four weeks of being robbed. It defies belief that anybody could stoop so low and I am appealing for the public’s help in catching whoever is responsible so that no other family has to face a similar heartache.”